5G establishes itself in the world as the communication technology of a not so distant future, which is already present in countries like USA and South Korea. And with it came the concerns about its effects on our health. Misinformation and countless conspiracy theories against technology are growing by the day – to the point of basing a bill on the Santa Catarina Legistative Assembly, for example. Fact is that, according to renowned scientists around the world, 5G is no danger to our health.
According to New York University radiology professor Christopher M. Collins, who studies the effect of high-frequency electromagnetic waves on the human body, the 5G network poses no health risks. He explains that the skin offers protection to the body by preventing waves from penetrating it.
In addition, the higher the frequency of radio waves, the safer they are to the body, and the 5G waves have higher frequencies than those emitted by cell phones or internet networks of other generations, for example.
In the experiment with rats and mice, exposure levels were 1.5 to 6 watts per kilogram in mice and 2.5 to 10 watts per kilogram in mice over nine hours daily. Frequencies and modulations of 2G, 3G, 4G, 4G-LTE and 5G networks were tested. The findings pointed to “clear evidence of heart tumors in male rats; and some evidence of tumors in the brain and adrenal gland of male rats. ” Female mice and rats were unaffected, and the scientists involved point out that the results cannot be extrapolated to humans.
– Exposure levels and duration were much higher than people experience even with the highest standards of cell phone use, and rodents were exposed all over the body. So these findings cannot be extrapolated directly to humans, ”said John Bucher, senior scientist for the National Toxicology Program. – We note, however, that the tumors we saw in these studies are similar to tumors previously reported in some studies with frequent mobile phone users.
The document also points out that current health standards related to this theme are “obsolete” and “protect industry, not health”.
This is because current guidelines assume that the only effect of exposure to such waves is only the heating of the tissue exposed to them.
As a result, the group’s proposal is for the European Union to favor wired internet initiatives rather than standards using the electromagnetic spectrum. At the very least, for the 5G deployment, the region can take steps to hold back the 5G expansion until scientists can prove the technology is not harmful to humans by decreeing levels where this exposure would not be harmful.
The document is signed by four Brazilian researchers from the Federal University of Rio Grande do Sul, the Federal Institute of Rio Grande do Sul and the Federal University of Campina Grande.
// Apple to get rid of ‘butterfly keyboard’ on MacBooks this year
Rumors that Apple will abandon its infamous butterfly keyboard are growing stronger. According to Apple analyst Ming-Chi Kuo (via MacRumors), the company will already introduce a scissor-powered keyboard on the upcoming 16-inch MacBook Pro, which is expected to go on sale in September this year. The report below confirms this, and points out that other MacBook models will follow the same line from 2020 onwards.
Apple would be willing to abandon the “butterfly” keyboard used on MacBooks starting in 2015. Since its release, there have been numerous reports of recurring problems. And even after a major correction, product reliability has fallen dramatically among consumers. Therefore, the company would be working on a solution based on the previous model, the famous “scissors”.
Who brings the information is Ming-Chi Kuo, who usually gets a lot of accuracy in his predictions. According to the market analyst, Apple will again use “scissor” switches, only enhanced with fiberglass to reinforce the keys. This should save money for the manufacturer, as the butterfly keyboard is more expensive to assemble.
Nowhere to run: Apple was forced to open a repair program (the famous recall) to replace these troublesome parts.
Almost in parallel, a new generation of MacBook Pro has arrived. Equipped with the aforementioned third generation of this new keyboard; shortly thereafter, it was the turn of the new MacBook Air.
The great advantage of this new keyboard is the presence of a protective film below the keys which prevents any dirt / residue from accumulating there. The problem is that even with it, iFixit had already shown us that some dirt can break through the new barrier; Which in practice would cause exactly the same disturbances as before. No sooner said than done!
The news should be a relief to MacBook owners who have had problems with some of the four generations of butterfly keyboards. In general, the mechanism was employed four years ago and caused keys to lock. Repeat characters (typing a “c” appears “ccc”) or become very noisy.
One of the theses for possible problems is related to dirt; When entering any kind of dirt in the key mechanism. It began to exhibit one of these weird behaviors previously described. To try to reduce the problem, last year’s MacBooks came with a membrane under the keys, but it wasn’t enough.
The return of the traditional keyboard may have another more important reason behind it. In addition to solving reliability issues, it could boost Apple’s profits as the butterfly engine is more expensive to produce and has lower margins, according to Kuo. The new keyboard, to be manufactured by Taiwanese Sunrex, would still cost more than the average price of a laptop keyboard, but it would be cheaper than the current one.
By 2019, Apple is expected to launch a 16-inch MacBook Pro, but it is not yet expected to bring the new keyboard. The MacBook Air could also get a more significant upgrade this year than just hardware changes, already with the scissor engine.